Roof



0d. 10, 1933. J |N 1,930,427

ROOF

Filed NOV. 25, 1931 ATTORNEYS.

WITNESS Patented Oct. 10, 1933 UNITED STATES ROOF James H. Grifiin,Grantwood, N. J.

Application November 25, 1931 Serial No. 577,337

5 Claims.

This invention relates to an improved roofing or roof covering, and moreparticularly relates to a composite roofing built up from units into afinished roofing structure.

The invention contemplates a slate or tile roof having the shingleefiect.

The principal object of the invention is the provision of a compositeroofing embodying improved features of construction rendering itdurable, fireproof and weatherproof.

The nature of the invention and its distinguishing features andadvantages will appear when the following specification is read inconnection with the accompanying drawing, in which Figure 1 is afragmentary plan of a roof constructed in accordance with the inventionand portion thereof being broken away to show underlying parts;

Figure 2 is an enlarged transverse section on the line 2-2 of Figure 1;

Figure 3 is an enlarged longitudinal section on the line 3-3 of Figure1;

Figure 4 is a plan of one of the roofing units;

Figure 5 is a fragmentary perspective of the slate hanger.

The invention is well suited for application to a new roof or forre-covering an old roof, and in the drawing is shown applied to aninclined roof for which type the invention is primarily devised.

A roof or roofing structure will be constructed of the required numberof similar units, one of which is shown in Figure 4 of the drawing. Theunit consists of suitable material such as a sheet of felt 10 of therequired size to have applied thereto slates or tiles 11, preferablythree, which when laid in a row will partly cover the sheet 10 so as toprovide a top marginal portion 12 and a side marginal portion 13. Use ismade of a quick setting mastic consisting of a mixture of asphalt andasbestos fiber. The mastic designated 14 is spread on the sheet 10 tocover an area equal to that of the slates 11. Use is made of pieces ofmetal 15, preferably of copper. The pieces 15 are set in the layer ofmastic 14, and are so spaced and disposed as to occur beneath theadjacent paralleling marginal portions of the slates 11. The slates 11are set in the mastic 14,

0 and the latter forms a secure bond between the slates 11 and the sheet10. The pieces of metal 15 provide an adequate weathering means at thecontiguous side edges of the slates 11 and prevent the elements ofweather from making inroads beneath the slates. In order to moresecurely hold each slate 11 in place against slipping there is providedmeans in the form of a hanger 16 connected with the upper end of theslate as at 17 and projecting upwardly therefrom. The hanger 16 has aneye or loop 18 to receive a suitable fastener such as a nail 19 driveninto the sheet 10 and structure which supports the unit.

In accordance with the invention each unit of the character describedabove is laid on the boards or supporting structure 20 of the roof andis secured thereto by the fasteners 19 and additional fasteners ifdesired. The units are laid to present rows of slates, the lower ends ofthe slates of each row overlapping the upper ends of the slates of thenext lower row as shown most clearly in Figure 2. It is to be understoodthat the side portions of the sheets 10 will be overlapped by reason ofthe projecting marginal portions 13. The slates 11 are beveled at theedges. The slates are arranged to give the effect of a shingle roof.

From the foregoing it will be apparent that there has been described aroofing structure which may be laid in a comparatively short time andwhich will be weatherproof, and particularly efficient to shed rainwater; that by reason of the metal pieces 15 the elements of weatherwill be excluded from beneath the slates at the exposed joints; and thatthe slates will be securely held against slippage in case of the mastic14 being softened in extremely hot weather.

I claim:

1. A roof structure including a sheet of suitable material, mastic onsaid sheet, slates set in the mastic contiguous each other, and metallicpieces set in the mastic beneath the adjacent paralleling marginalportions of said slates.

2. A roof structure including suitable material like felt, mastic onsaid material, slates set in the mastic and arranged in rows, the lowerends of slates of each row overlapping the upper ends of the slates ofthe next lower row, and metallic pieces set in the mastic beneath theadjacent side marginal portions of said slates.

3. A roof structure including a suitable base consisting of sheetmaterial, slates arranged in rows, suitable material to form a bondbetween the base and slates, and metallic pieces set in the bondingmaterial beneath the adjacent contiguous marginal portions of saidslates. I

4. A roof structure including a layer of cementitious material, slatesset in said material, and metallic pieces set in said material anddisposed beneath the adjacent marginal portions of the slates. m

5. A roof structure including rows of slates, cementitious material, andmetallic pieces set in said material and disposed beneath the adjacentmarginal portions of the slates.

JAMES H. GRIFFIN.

